Problem this snippet solves:
Provides a packer template that can be used to build a Vagrant "box" from a BIG-IP VE
Code :
{
  "variables": {
    "sudo_url": "http://repo.centos.org/files/sudo-1.8.16-1.el5.x86_64.rpm",
    "sudo_rpm": "sudo-1.8.16-1.el5.x86_64.rpm"
  },

  "builders": [
    {
      "type": "virtualbox-ovf",
      "source_path": "BIGIP-11.6.0.0.0.401.LTM_1SLOT-ide.ova",
      "ssh_username": "root",
      "ssh_password": "default",
      "ssh_wait_timeout": "30000s",
      "headless": "false",
      "shutdown_command": "shutdown -h now",
      "import_flags": ["--eula", "accept"],
      "guest_additions_mode": "disable",
      "vm_name": "BIGIP-11.6.0.0.0.401.LTM_1SLOT-ide",
      "vboxmanage": [
        ["modifyvm","{{.Name}}","--memory","4096"],
        ["modifyvm","{{.Name}}","--cpus","2"],
        ["modifyvm","{{.Name}}","--nic1","NAT"]
      ]
    }
  ],

  "post-processors": [
    {
      "type": "vagrant",
      "compression_level": 1,
      "keep_input_artifact": true,
      "output": "BIGIP-11.6.0.0.0.401.LTM_1SLOT-ide.box"
    }
  ],

  "provisioners": [
    {
      "type": "shell",
      "inline": [
        "mount -o remount,rw /dev/mapper/vg--db--hda-set.1._usr /usr",
        "curl -o /tmp/{{ user `sudo_rpm` }} {{ user `sudo_url` }}",
        "rpm -Uvh /tmp/{{ user `sudo_rpm` }}",

        "tmsh create auth user vagrant password vagrant partition-access add { all-partitions { role admin } } shell bash",
        "echo 'vagrant ALL=(ALL) NOPASSWD:ALL' > /etc/sudoers.d/vagrant",
        "mkdir -p /home/vagrant/.ssh",
        "chmod 0700 /home/vagrant/.ssh",
        "curl --insecure -L -o /home/vagrant/.ssh/authorized_keys https://raw.github.com/mitchellh/vagrant/master/keys/vagrant.pub",
        "chmod 0600 /home/vagrant/.ssh/authorized_keys",
        "chown -R vagrant /home/vagrant/.ssh",
        "tmsh save sys config"
      ]
    }
  ]
}